Rotating Adapter Ring for Firecrest 100mm MKI Holder

These rotating Adapter rings for the Firecrest 100mm Filter Holder Kit have an 82mm front thread for the Ultraslim Firecrest Polarizer (not included) with 72, 77 or 82mm threads on the reverse to fit directly to your lens.  These superslim rotating rings fit directly into the Firecrest 100mm MKI Holder and can be used with or without the Ultraslim Firecrest Polarizer.  Available Sizes: 72-82mm77-82mm82-82mm (These rings are not compatible with the Formatt Hitech 100mm Aluminum filter holder.)